MATHEMATICS

• order of operations

  PEMDAS
• 25 prime numbers
• 2 is the smallest prime number
• 97 is the biggest prime number
• SHORTCUT METHOD OF GETTING THE PRIME NUMBER

  step 1: Eliminate numbers that are not prime numbers

  step 2: multiply
• when getting LCM and GCF

  use ladder method
• LCM

  bottom (choices)

  to

  top (questions)
• GCF

  top (questions)

  to

  bottom (chocies)